The 7492 / 74LS92 counter
IC is a 4-Bit ripple counter (4 cascaded counting elements). The
individual counting circuits inside are partitioned into two blocks,
one is a divide by two counter and the other capable of divide by 6,
which when combined together effectively implements a divide by 12,
perfect for the hour tracking register for a digital clock.

For the decade counter version refer to 74LS90.
For the hexadecimal counter (divide by 16 / 4-bit counter) refer to
74LS93.